A physical change is change that
a, forms a substance with new composition
b, results in the formation of new properties
c, results in the formation of new substance
d, does not alther the composition of the substance​

Litmus paper is made from water-soluble dyes which are extracted from lichens. this paper is used as an acid-base indicator. which of these common household substances would turn blue litmus paper red? a) bleach b) lye c) soap d) vinegar

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize